/* ==========================================================================
   榴莲云 (Durian Cloud) - 新潮动漫风 极简原生样式表
   零重型库依赖 · 极速加载 · 纯原生 CSS · 响应式移动优先
   ========================================================================== */

:root {
  --bg-main: #0B0F19;
  --bg-card: #131A2A;
  --bg-card-hover: #1A233A;
  --durian-yellow: #FFDF00;
  --durian-gold: #FFAE00;
  --anime-pink: #FF2E93;
  --anime-cyan: #00F0FF;
  --anime-purple: #8B5CF6;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --border-comic: #243049;
  --border-pop: #FFDF00;
  --comic-shadow: 5px 5px 0px #000000;
  --comic-shadow-yellow: 5px 5px 0px #FFDF00;
  --comic-shadow-pink: 5px 5px 0px #FF2E93;
  --comic-shadow-cyan: 5px 5px 0px #00F0FF;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(255, 223, 0, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 70%, rgba(255, 46, 147, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(0, 240, 255, 0.03) 0%, transparent 60%);
  background-attachment: fixed;
}

/* 漫画风网点背景修饰 */
.manga-dots-bg {
  background-image: radial-gradient(#243049 1px, transparent 1px);
  background-size: 20px 20px;
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--border-comic);
  padding: 14px 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--durian-yellow);
  border: 2px solid #000;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 2px 2px 0px #000;
  transform: rotate(-3deg);
  transition: var(--transition);
}

.logo-badge:hover .logo-icon {
  transform: rotate(6deg) scale(1.08);
}

.logo-text {
  background: linear-gradient(135deg, #FFDF00 0%, #FFFFFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-sub {
  font-size: 0.72rem;
  padding: 2px 6px;
  background: var(--anime-pink);
  color: #FFF;
  border-radius: 4px;
  margin-left: 6px;
  font-weight: 800;
  box-shadow: 1px 1px 0px #000;
  text-transform: uppercase;
  -webkit-text-fill-color: initial;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--durian-yellow);
}

.nav-highlight {
  color: var(--durian-yellow);
  font-weight: 800;
  position: relative;
}

.nav-highlight::after {
  content: "热门";
  font-size: 0.62rem;
  background: var(--anime-pink);
  color: #FFF;
  padding: 1px 5px;
  border-radius: 4px;
  margin-left: 5px;
  vertical-align: top;
  border: 1px solid #000;
  box-shadow: 1px 1px 0px #000;
  font-weight: 900;
}

/* 呼吁性按钮 (CTA Buttons) - 严格满足动漫潮流风格 & 触控手感 */
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--durian-yellow);
  color: #000000;
  font-weight: 900;
  font-size: 1rem;
  padding: 12px 26px;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 2.5px solid #000000;
  box-shadow: var(--comic-shadow);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  line-height: 1.2;
}

.btn-cta:hover {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0px #000000;
  background: #FFF152;
}

.btn-cta:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0px #000000;
}

.btn-cta-pink {
  background: var(--anime-pink);
  color: #FFFFFF;
}

.btn-cta-pink:hover {
  background: #FF47A3;
  color: #FFFFFF;
}

.btn-cta-cyan {
  background: var(--anime-cyan);
  color: #000000;
}

.btn-cta-cyan:hover {
  background: #3DF5FF;
}

.btn-cta-outline {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--border-comic);
  box-shadow: 3px 3px 0px #000;
}

.btn-cta-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--durian-yellow);
  color: var(--durian-yellow);
}

/* 醒目视觉区 (Hero Section) */
.hero-section {
  padding: 70px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 223, 0, 0.1);
  border: 1.5px solid var(--durian-yellow);
  color: var(--durian-yellow);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 800;
  margin-bottom: 24px;
  box-shadow: 2px 2px 0px rgba(0,0,0,0.5);
  animation: floatBounce 3s ease-in-out infinite;
}

@keyframes floatBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -1px;
}

.hero-title .highlight-yellow {
  color: var(--durian-yellow);
  text-shadow: 2px 2px 0px #000;
  position: relative;
  display: inline-block;
}

.hero-title .highlight-cyan {
  color: var(--anime-cyan);
  text-shadow: 2px 2px 0px #000;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  color: var(--text-muted);
  max-width: 820px;
  margin: 0 auto 36px;
  font-weight: 500;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 7px;
}

.trust-dot {
  width: 8px;
  height: 8px;
  background: var(--durian-yellow);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--durian-yellow);
}

/* 动漫风格炫酷信息展示横幅 (Anime Graphic Card) */
.hero-card-banner {
  margin-top: 50px;
  background: var(--bg-card);
  border: 3px solid #000;
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--comic-shadow-yellow);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  text-align: left;
  position: relative;
}

.banner-stat {
  padding: 12px;
  border-left: 3px solid var(--durian-yellow);
}

.stat-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--durian-yellow);
  line-height: 1.1;
  font-family: monospace;
}

.stat-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 600;
}

/* 章节通用标题 */
.section {
  padding: 80px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px;
}

.comic-badge {
  display: inline-block;
  background: var(--anime-pink);
  color: #FFF;
  font-size: 0.8rem;
  font-weight: 900;
  padding: 4px 14px;
  border-radius: var(--radius-sm);
  border: 2px solid #000;
  box-shadow: 2px 2px 0px #000;
  text-transform: uppercase;
  margin-bottom: 12px;
  transform: rotate(-1.5deg);
}

.comic-badge-yellow {
  background: var(--durian-yellow);
  color: #000;
}

.comic-badge-cyan {
  background: var(--anime-cyan);
  color: #000;
}

.section-title {
  font-size: clamp(1.8rem, 3.8vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* 核心优势网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 26px;
}

.feature-card {
  background: var(--bg-card);
  border: 2.5px solid var(--border-comic);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  border-color: var(--durian-yellow);
  transform: translateY(-5px);
  box-shadow: var(--comic-shadow-yellow);
}

.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  border: 2px solid #000;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 3px 3px 0px #000;
}

.icon-yellow { background: var(--durian-yellow); color: #000; }
.icon-cyan { background: var(--anime-cyan); color: #000; }
.icon-pink { background: var(--anime-pink); color: #FFF; }
.icon-purple { background: var(--anime-purple); color: #FFF; }

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* AI与流媒体支持矩阵 */
.ecosystem-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.eco-block {
  background: var(--bg-card);
  border: 2.5px solid var(--border-comic);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}

.eco-block-ai {
  border-top: 4px solid var(--anime-cyan);
}

.eco-block-streaming {
  border-top: 4px solid var(--anime-pink);
}

.eco-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--border-comic);
}

.eco-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.eco-title-group h3 {
  font-size: 1.35rem;
  font-weight: 900;
}

.eco-tag {
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1.5px solid #000;
  box-shadow: 1.5px 1.5px 0px #000;
}

.eco-badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
}

.eco-pill-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid var(--border-comic);
  border-radius: var(--radius-sm);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: var(--transition);
}

.eco-pill-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--durian-yellow);
  transform: translateY(-2px);
}

.pill-top {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 0.95rem;
}

.pill-status {
  font-size: 0.75rem;
  color: #10B981;
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
}

.status-dot {
  width: 6px;
  height: 6px;
  background: #10B981;
  border-radius: 50%;
  display: inline-block;
}

/* 套餐价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 2.5px solid var(--border-comic);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--durian-yellow);
  box-shadow: var(--comic-shadow-yellow);
  transform: translateY(-6px);
}

.pricing-card.featured {
  border: 3px solid var(--durian-yellow);
  box-shadow: var(--comic-shadow-yellow);
  background: linear-gradient(180deg, #182239 0%, var(--bg-card) 100%);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-4px);
}

.popular-ribbon {
  position: absolute;
  top: -14px;
  right: 20px;
  background: var(--anime-pink);
  color: #FFF;
  font-weight: 900;
  font-size: 0.78rem;
  padding: 4px 14px;
  border-radius: var(--radius-sm);
  border: 2px solid #000;
  box-shadow: 2px 2px 0px #000;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 6px;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.86rem;
  margin-bottom: 20px;
  min-height: 42px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1.5px dashed var(--border-comic);
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--durian-yellow);
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-main);
  font-family: monospace;
}

.price-cycle {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.plan-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.check-icon {
  width: 18px;
  height: 18px;
  color: var(--durian-yellow);
  flex-shrink: 0;
}

/* 用户评价 (Testimonials) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--bg-card);
  border: 2px solid var(--border-comic);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--anime-cyan);
  box-shadow: var(--comic-shadow-cyan);
  transform: translateY(-4px);
}

.review-stars {
  color: var(--durian-yellow);
  font-size: 1.1rem;
  margin-bottom: 12px;
  display: flex;
  gap: 3px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 18px;
  font-style: normal;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid #000;
  background: var(--anime-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 2px 2px 0px #000;
  flex-shrink: 0;
}

.reviewer-name {
  font-weight: 800;
  font-size: 0.95rem;
}

.reviewer-tag {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* 常见问题解答 (FAQ) - 原生 details 极简无 JS */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 2px solid var(--border-comic);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--durian-yellow);
}

.faq-item summary {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--durian-yellow);
  transition: transform 0.25s ease;
}

.faq-item[open] {
  border-color: var(--durian-yellow);
  box-shadow: 3px 3px 0px #000;
}

.faq-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  color: var(--anime-pink);
}

.faq-content {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
  border-top: 1px dashed var(--border-comic);
  padding-top: 16px;
}

/* 最终行动区 (Bottom CTA Box) */
.cta-banner-box {
  background: linear-gradient(135deg, #18233C 0%, #101726 100%);
  border: 3px solid var(--durian-yellow);
  box-shadow: var(--comic-shadow-yellow);
  border-radius: var(--radius-lg);
  padding: 50px 30px;
  text-align: center;
  margin-top: 40px;
  position: relative;
  overflow: hidden;
}

.cta-banner-box h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 14px;
}

.cta-banner-box p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto 30px;
}

/* 页脚规范：严格只保留 4 个标题，并在新页面打开展示 */
.site-footer {
  border-top: 2.5px solid var(--border-comic);
  background: #080B12;
  padding: 40px 0 35px;
  margin-top: 80px;
}

.footer-nav-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-link {
  color: var(--text-main);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 800;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-link:hover {
  background: var(--bg-card);
  border-color: var(--durian-yellow);
  color: var(--durian-yellow);
  box-shadow: 2px 2px 0px #000;
  transform: translateY(-2px);
}

.footer-copy {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 10px;
}

/* 子页面专用样式 (关于我们 / 服务条款 / 隐私政策 / 网站地图) */
.subpage-header {
  padding: 50px 0 30px;
  border-bottom: 2px solid var(--border-comic);
  background: rgba(19, 26, 42, 0.4);
}

.subpage-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  margin-bottom: 12px;
}

.subpage-lead {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.subpage-body {
  padding: 50px 0 80px;
}

.content-paper {
  background: var(--bg-card);
  border: 2.5px solid var(--border-comic);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--comic-shadow);
}

.content-block {
  margin-bottom: 38px;
}

.content-block:last-child {
  margin-bottom: 0;
}

.content-block h2 {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--durian-yellow);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1.5px dashed var(--border-comic);
  padding-bottom: 10px;
}

.content-block h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin: 16px 0 8px;
  color: var(--text-main);
}

.content-block p, .content-block li {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.content-block ul {
  padding-left: 20px;
  margin: 10px 0;
}

.content-block li {
  margin-bottom: 8px;
}

.alert-box {
  background: rgba(255, 46, 147, 0.08);
  border: 2px solid var(--anime-pink);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 20px 0;
}

.alert-box.green {
  background: rgba(16, 185, 129, 0.08);
  border-color: #10B981;
}

.alert-box h4 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: #FFF;
}

/* 网站地图节点链接网格 */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.sitemap-card {
  background: rgba(255, 255, 255, 0.02);
  border: 2px solid var(--border-comic);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sitemap-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--durian-yellow);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sitemap-links {
  list-style: none;
}

.sitemap-links li {
  margin-bottom: 10px;
}

.sitemap-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
}

.sitemap-links a:hover {
  color: var(--anime-cyan);
  transform: translateX(4px);
}

/* ==========================================================================
   响应式媒体查询 (@media) - 确保手机端完美单栏展示与大拇指友好点击
   ========================================================================== */

@media (max-width: 992px) {
  .ecosystem-container {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-5px);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 10px 0;
  }

  .nav-wrapper {
    flex-wrap: wrap;
    gap: 10px;
  }

  .nav-actions {
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 4px;
    gap: 12px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .nav-actions::-webkit-scrollbar {
    display: none;
  }

  .nav-actions .nav-link {
    display: inline-block;
    font-size: 0.88rem;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-comic);
  }

  .btn-nav-cta {
    padding: 6px 14px;
    font-size: 0.88rem;
    white-space: nowrap;
  }

  .hero-section {
    padding: 45px 0 40px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    gap: 14px;
  }

  .btn-cta {
    width: 100%;
    min-height: 52px;
    font-size: 1.05rem;
    padding: 14px 20px;
  }

  .hero-card-banner {
    grid-template-columns: 1fr;
    padding: 20px;
    gap: 16px;
  }

  .features-grid,
  .reviews-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .eco-badge-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-nav-bar {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }

  .footer-link {
    width: 100%;
    justify-content: center;
    background: var(--bg-card);
    border: 1.5px solid var(--border-comic);
    padding: 12px;
  }

  .content-paper {
    padding: 22px 18px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }
  
  .eco-badge-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-trust-row {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
}

/* ==========================================================================
   高科技网格卡片 (High-Tech Grid Cards) 与 SEO 文章专用样式
   ========================================================================== */
.tech-grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 26px;
  margin: 32px 0 45px;
}

.tech-card {
  background: linear-gradient(145deg, rgba(19, 26, 42, 0.95) 0%, rgba(13, 17, 27, 0.98) 100%);
  border: 2px solid var(--border-comic);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 3px 3px 0px #000;
}

.tech-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--durian-yellow), var(--anime-pink), var(--anime-cyan));
  opacity: 0.7;
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateY(-5px);
  border-color: var(--anime-cyan);
  box-shadow: var(--comic-shadow-cyan);
}

.tech-card:hover::before {
  opacity: 1;
  height: 4px;
}

.tech-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.tech-badge {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid #000;
  box-shadow: 1px 1px 0px #000;
  text-transform: uppercase;
}

.tech-badge-cyan { background: var(--anime-cyan); color: #000; }
.tech-badge-pink { background: var(--anime-pink); color: #FFF; }
.tech-badge-yellow { background: var(--durian-yellow); color: #000; }

.tech-card-title {
  font-size: 1.12rem;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 12px;
  color: var(--text-main);
  transition: var(--transition);
}

.tech-card:hover .tech-card-title {
  color: var(--durian-yellow);
}

.tech-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.tech-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--border-comic);
}

.tech-read-btn {
  color: var(--anime-cyan);
  text-decoration: none;
  font-weight: 800;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.tech-read-btn:hover {
  color: var(--durian-yellow);
  transform: translateX(4px);
}

.back-btn-wrap {
  margin-bottom: 24px;
}

.seo-meta-box {
  background: rgba(0, 240, 255, 0.05);
  border: 1.5px dashed var(--anime-cyan);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  margin: 18px 0 28px;
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 768px) {
  .tech-grid-container {
    grid-template-columns: 1fr;
  }
}